Coke-extracting mechanism for vertical retorts for the distillation of carbonaceous materials



June 5 ,'-1928.

F. .1 WEST ETAL COKE EXTRACTING MECHANISM FOR VERTICAL RETORTS FOR THE DISTILLATION OF CARBONACEOUS MATERIALS 2 Sheets-Sheet 1 Filed June 6, 1927 F. .J. WEST El AL COKE EXTRACTING MECHANISM FOR VERTICAL RETORTS FOR THE DISTILLAT-ION OF CARBONACEOUS MATERIALS 7 Filed June 6, 1927 2 sheets-sheet 2 Patented June 5, 1928.

v UNITED sTATEs PATENT oer-"ice.

FREDERICK JOSEPH AND ERNEST \NES'L OF MANCHESTER, ENGLAND.

COKE-EXTRACTING MECHANISM FOR- VERTICAL RETORTS FOR THE DISTILLATION GARBONACEOUS MATERIALS.

, Application filed June 6, 1927, Serial No. 196,962, and in Great Britain June 28, 1926.

This invention relates to coke extracting mechanism for vertical retorts for the distillation of carbonaceous materials and particularly to mechanism of the type in which a ram is adapted to support the coke and is gradually lowered into a chamber from which the coke is subsequently removed.

The invention has for its object to provide an improved construction and arrangement of parts for facilitating the removal of the coke from the chamber or space into which it is lowered under the control of the ram.

The invention comprises the combination with each retort, of a pivotally mounted coke chamber disposed beneath the retort, a ram adapted to be reciprocated in said coke chamber and capable of withdrawal from the latter, means for turning said coke chamher about its pivotal support when the coke is to be'discharged therefrom, means for closing the lower end of the retort during such discharge, and means for closing such lower end when the coke chamber is returned to position and before the ram is raised therein to support the charge in the retort.

The invention further comprises the improved construction and arrangement of parts hereinafter described.

Referring to the two accompanying sheets of explanatory drawings Figure 1 isa sectional side elevation, and Figure 2 an end elevation illustrating one form of coke extractor in accordance with this invention.

The same reference letters in the two views indicate the same parts. Y

As shown in the drawings, the coke chamber a has trunnions b thereon at about midway between its ends, which are carried in suitable bearings as 0. At the upper end of the said chamber a an extension piece (1 is provided which comes beneath the base of the retort e when the chamber is turned about its pivot or trunnions for coke discharging purposes.

Within the upper end of the coke chamber there is provided a hinged plateor door as f operated by an arm g (having an attached chain h) on the outside of the chamber. When in its raised or service position the said door f is supported by catches as i which can be released by the ram which moves in the coke chamber as hereinafter described.

Y its upper end) When in its lowered or out-of-service position, the hinged plate or door f is in a recess is in the side of the coke chamber wall.

The lower end of the coke chamber a is inclined and caused to engage or seat upon a correspondingly inclined surface on the fixed base Z of the chamber into which the ram is withdrawn during the discharging operation. The engagement of the said inclined surfaces gives a slight lifting movement to the coke chamber a causing it to make (at an air tight joint with the. base of the retort 6. Provision is madepreferably by clearance in the trunnion bearings, for such a slight upward movement of the coke chamber, due to the engagement of the said inclined surfaces. We .may provide adjusting means for raising or adjusting the fixed base Z relatively to the coke chamber a in order to ensure the lifting action before described. In the example illustrated, the said-means comprise adjustable screw. studs as m arranged in the foundation plate n.

. The ram which supports the coke in the retort and which byits downward movement determines the rate of coke extraction has an inclined upper or operative face. It may be reciprocated by hydraulic or other means.

In the illustrated. example such ram has a plunger 0 working within the hydraulic cylinder p. I

The coke chamber is turned about its pivot preferably by hydraulic means comprising a cylinder 1' adapted to oscillate on trunnion bearings as sand having its plunger rod t connected pivotally at u to the coke chambera.

The operation of the apparatus is as follows :'Assuming that the ram j is at the top w of the coke chamber a and supporting the charge in the retort e, the ram is now gradually lowered scend in the cylinder 7)) in accordance with the rate at which carbonization proceeds.

When the coke chamber a .is. completely filled and the ram withdrawn into the fixed base Z of such chamber, the latter is turned about its trunnion supports 0 (by the action of the hydraulic cylinder 1' and its plunger rod t) in order to move its upper end clear of the retort and its lower end clear of the fixed base as indicated by dotted lines at Figure 1. During such movement (by allowing plunger 0 to de the extension piece 03 on the upper end of the coke chamber has closed the bottom of the retort e.

'l/Vhen the coke discharge is completed (through the lower end of the coke chamber a) the door 7 at the top of a is turned to bridge across the said top. The chamber a is now returned to its operative or receiving position (by a reverse action of the hydraulic cylinder 1" and its plunger rod 1') When the door supports the coke charge. The ram is raised (by the ascent of the plunger 0 of "the hydraulic cylinder p) and releases the catches i supporting the door. The latter then rests on the ram and, as the ram descends, moves to its out-of-service position Within the recess is in the coke chamber Wall. The sequence of operations is then repeated.

The position of the ram j Within the coke chamber a (when the latter in its service or receiving position) may be indicated by the tcl-ldiale weights 1; connected to the ram by the cord w as shown at Figure 1.

The automatic catches i for the door f are preferably mounted at the upper ends of the levers a: with Which are associated the springs 3 and push pieces Which are engaged by the ramto Withdraw the catches 2' against the action of springs y. The arm with chain prov-ides for the release of the catches by hand when desired.

What We claim is 1. In coke extractors for vertical retorts, the combination With each retort of 'a pivotally mounted coke chamber having a ram adapted for reciprocation therein and capable of Withdrawal therefrom, means for turning said chamber about its pivotal support or supports for coke discharging purposes, means for closing the lower end of the retort during such discharge, and means for effecting such closure When the chamber is returned to its receiving position and be fore the ram is raised therein to support the retort contents.

2. In coke extractos the combination comprising pivotally mounted coke chamber having means ar ranged therewith for turnii' g same about its pivotal support or supports for co ke d-i'scharging purposes, and provided with a lat eral extension adapted to more therewith and to support the coke in the retort during :iuch discharge.

lncoke extractors for vertical retorts having the combination claimed in claim means whereby an air tight joint is automatically formed between the said pivotally mounted chamber and the retort by the movement of such chamber.

it. In coke extractors for vetrical retorts having the combination claimed in claim 2, means for raising or adjusting the fixed base oi the said chamber relatively to the latter for the purpose described. i

In testimony whereof we have names to this specification. 1

FREDERICK J OSEPH 'WEST. ERNEST WVEST.

signed our for vertical retorts, 

